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  #1  
Old 02-15-2008, 01:52 PM
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85 300D- No new Transmission- New Engine!

So, my 85's transmission (non-functioning glittery burnt fluid) is different from all the other years! So, either I find an 85 trans on the Big Island or buy one from the mainland ~$1000 or...

I do have an 80 300D with working trans and engine as a parts car. I am thinking I will just pop the engine and trans out of that one put it into the 85...

My question is, aside from the motor mounts are there any other parts I should think about replacing while the engine is out of the car? Any other maintenance type things that could be done?
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Will

1985 300D- 222k- (bad transmission)
1980 300D- (parts car)
1982 300SD- 242k
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  #2  
Old 02-15-2008, 02:58 PM
MattBelliveau's Avatar
Gotta another one...
 
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Oil cooler lines? Pan gaskets?
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1989 300E 144K
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  #3  
Old 02-15-2008, 03:15 PM
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would be a good time to clean up the engine bay and the motor. Also might want to do any body work in front if front.
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1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)
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  #4  
Old 02-15-2008, 03:24 PM
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what makes the 85 different from other years with turbo motors. I have one i have to replace in an 85 and all the searching around here seems to indicate that compatability is not a big issue. higher stall speed torque converter. I think they will go from other years with the turbo. hopefully someone who knows will chime in.
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1996 E300 110,000
1985 300TD 212,000
1980 300D 238,000
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Old 02-15-2008, 04:01 PM
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this is of great interest to me, hopefully someone will step up with some definites. check out these threads.

Would a tranny from a 85 300TD work in a 81 300CD?

Transmission from 85 into an 82
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1996 E300 110,000
1985 300TD 212,000
1980 300D 238,000
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  #6  
Old 02-15-2008, 04:36 PM
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I'd think long and hard about replacing a turbo motor with a non-turbo before I did it.
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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13
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  #7  
Old 02-15-2008, 04:40 PM
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85 300D 4spd+tow+h4
 
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You can use any non 4 bolt pan transmission. Just make sure two swap the electronic pickup from the 85.
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1987 300D Sturmmachine
1991 300D Nearly Perfect
1994 E320 Cabriolet
1995 E320 Touring
2001 Eurovan FOR SALE
1985 300D car, sold and missed.
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  #8  
Old 02-15-2008, 04:42 PM
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Your '80 is a 722.1 transmission. Looks different, but has a modulator like the later 722.3.
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'90 300SE 298k
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'80 300D 255k Purchased new by family in 1980.

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  #9  
Old 02-15-2008, 05:03 PM
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can you expand upon that

Quote:
Originally Posted by winmutt View Post
You can use any non 4 bolt pan transmission.
if you have a minute could you explain why ? just for knowings sake.
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1996 E300 110,000
1985 300TD 212,000
1980 300D 238,000
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  #10  
Old 02-15-2008, 05:16 PM
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85 300D 4spd+tow+h4
 
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Quote:
Originally Posted by johninva View Post
if you have a minute could you explain why ? just for knowings sake.
The only difference between an 85 and any other turbo tranny is the electronic pickup on the side. And you can move that from one to the other. Now the TC is diff as well but you probably don't need to replace that.
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1991 300D Nearly Perfect
1994 E320 Cabriolet
1995 E320 Touring
2001 Eurovan FOR SALE
1985 300D car, sold and missed.
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  #11  
Old 02-15-2008, 05:57 PM
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I don't mind the change of subject...

The 80 that I am taking the engine and transmission from looks to have some crazy vacuum system. Does this relate to the transmission or can I leave it behind and use the simpler system from the 85 turbo.

BTW- I own a non-turbo and am actually impressed with how peppy it is so I am not all that concerned about changing the turbo to a non-turbo. Anybody out
there need an 85 turbo engine? It runs well, just the transmission is bad.
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Will

1985 300D- 222k- (bad transmission)
1980 300D- (parts car)
1982 300SD- 242k
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  #12  
Old 02-15-2008, 06:17 PM
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Quote:
Originally Posted by will_sanderson View Post
The 80 that I am taking the engine and transmission from looks to have some crazy vacuum system. Does this relate to the transmission or can I leave it behind and use the simpler system from the 85 turbo.

BTW- I own a non-turbo and am actually impressed with how peppy it is so I am not all that concerned about changing the turbo to a non-turbo. Anybody out
there need an 85 turbo engine? It runs well, just the transmission is bad.
As it happens, one dufference in peppiness comes from the non-turbo's 3.47 rear-end ratio, so unless, along with the engine/tranny, you swap in that unit for the 2.85 differential in your 85, you'll definitely notice a loss of pep.

Happy Motoring, Mark
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